component
S-LBSS4240LT1G
Public Made by Adomby adom
LRC Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownS-LBSS4240LT1G
LRC · Bipolar (BJT) · SOT-23
S-LBSS4240LT1G from LRC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BASE | input | Base of the NPN transistor; VEBO maximum is 5 V and VBE(on) is at most 0.75 V at IC = 100 mA, VCE = 2 V. |
| 2 | EMITTER | passive | Emitter of the NPN transistor; continuous collector current through the device is rated at 2 A. |
| 3 | COLLECTOR | passive | Collector of the NPN transistor; VCEO and VCBO are rated at 40 V and continuous IC at 2 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 40 | V | Ta = 25ºC | 1 | ||
| Collector-Base voltage | VCBO | 40 | V | Ta = 25ºC | 1 | ||
| Emitter-Base Voltage | VEBO | 5 | V | Ta = 25ºC | 1 | ||
| Collector current-continuous | IC | 2 | A | Ta = 25ºC | 1 | ||
| Total power dissipation | PD | 0.3 | W | Ta = 25ºC | 1 | ||
| Junction temperature | TJ | 150 | ℃ | Ta = 25ºC | 1 | ||
| Storage temperature | TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance from junction to ambient in free air | RθJA | 417 | ºC/W | (Note 1) | 1 | ||
| Thermal resistance from junction to ambient in free air | RθJA | 260 | ºC/W | (Note 2) | 1 | ||
| Thermal resistance from junction to case | RθJC | 150 | ºC/W | (Note 1) | 1 | ||
| Emitter-Base cut-off current | IEBO | 100 | nA | IC = 0, VEB = 4 V | 2 | ||
| DC current gain | hFE | 350 | IC = 100 mA, VCE = 2 V | 2 | |||
| DC current gain | hFE | 300 | IC = 500 mA, VCE = 2 V | 2 | |||
| DC current gain | hFE | 150 | IC = 2 A, VCE = 2 V | 2 | |||
| Collector-Emitter saturation voltage | VCE(sat) | 70 | mV | IC = 100 mA, IB = 1 mA | 2 | ||
| Collector-Emitter saturation voltage | VCE(sat) | 100 | mV | IC = 500 mA, IB = 50 mA | 2 | ||
| Collector-Emitter saturation voltage | VCE(sat) | 180 | mV | IC = 750 mA, IB = 15 mA | 2 | ||
| Collector-Emitter saturation voltage | VCE(sat) | 320 | mV | IC = 2 A, IB = 200 mA (Note 3) | 2 | ||
| Base-Emitter turn on voltage | VBE(on) | 0.75 | V | IC = 100 mA, VCE = 2 V | 2 | ||
| Base-Emitter saturation voltage | VBE(sat) | 1.1 | V | IC = 2 A, IB = 200 mA (Note 3) | 2 | ||
| Transition frequency | fT | 100 | MHz | IC = 100 mA, VCE = 10 V, f = 100 MHz | 2 | ||
| Collector capacitance | Cc | 20 | pF | IE = Ie = 0, VCB = 10 V, f = 1 MHz | 2 | ||
| Collector-Emitter cutoff current | ICEO | 1 | µA | IB = 0, VCE = 40 V | 2 | ||
| Collector-Base Breakdown Voltage | VBR(CBO) | 40 | V | IC = 100 μA, IE = 0 | 2 | ||
| Emitter-Base Breakdown Voltage | VBR(EBO) | 5 | V | IE = 100 μA, IC = 0 | 2 | ||
| Collector-Emitter Breakdown Voltage | VBR(CEO) | 40 | V | IC = 10 mA, IB = 0 | 2 |
CAD (KiCad official)
- Symbol:
S-LBSS4240LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
s-lbss4240lt1g-etched.step/s-lbss4240lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s-lbss4240lt1g.step/s-lbss4240lt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
b57eff77db004c67, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).